Hello,
3. js/global.js http://prntscr.com/gthsdi trigger for popup.
4. I’ve checked your site on mobile and do not see the problem.
5. You can use LightShot program to provide us with screenshots.
Here is link: https://app.prntscr.com/en/index.html
6. http://prntscr.com/gthooy css/style.css.
Regards